Auto body repair & detailing: 1999 BMW 528i hood ornament 4door sedan, bmw 528i, 1999 bmw 528i

Question
Where is the cheapest place to buy the subject piece? What might be the price for a used, but in excellent condition hood ornament? How difficult is this piece to remove and replace by me--fairly handy with tools? Pls advise and thanks for your assistance.  

Answer
Tom,
 Try Ebay first.  If you have no luck there, try your area BMW dealer.  
 To replace this ornament, open the hood, remove the hood insulator if necesary.  Look in the hole on the underside for a large nut.  Remove this nut and the ornament will come out, pay attention how the spring is attached and put it on the new ornament.  
Thank you,
Mike and Lisa